Fatigue life estimation of welded joints including the effects of crack closure phenomena

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dc.contributor.authorBURGOS, D. F. S.
dc.contributor.authorRUGGIERI, C.
dc.contributor.authorGODEFROID, L. B.
dc.contributor.authorGustavo Donato
dc.contributor.authorOrcidhttps://orcid.org/0000-0003-0807-8745
dc.date.accessioned2022-01-12T22:03:17Z
dc.date.available2022-01-12T22:03:17Z
dc.date.issued2011-06-24
dc.description.abstractThe integrity of mechanical components, particularly when they experience considerable fatigue damage during its operating life, can be strongly influenced by the presence of residual stress fields and mechanical heterogeneity. Premature closure of crack flanks greatly influences fatigue crack growth rate. Extensive elastic-plastic finite element analyses have been carried out to investigate detailed crack closure behavior in center cracked welded compact tension (CT) specimens with one level of weld strength mismatch. The finite element results show that homogeneous, soft material has higher crack opening loads than heterogeneous material with 50% overmatch conditions. Fracture testing conducted on C(T) specimens to measure fatigue crack growth rates for an ASTM A516 Gr. 70 steel weldment provide the experimental data to support such behavior. The fatigue life can be reduced by more than 100 % for a condition of 50% overmatch when compared with the evenmatch condition. It was verified that most of time spent in fatigue propagation life is consumed at the beginning of the propagation life. Copyright © 2011 by ASME.
dc.description.firstpage93
dc.description.lastpage105
dc.description.volume2
dc.identifier.citationBURGOS, D. F. S.; RUGGIERI, C.; GODEFROID, L. B.; DONATO, G. Fatigue life estimation of welded joints including the effects of crack closure phenomena. Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE, v. 2, p.93-105, June, 2011.
dc.identifier.doi10.1115/OMAE2011-49123
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/4194
dc.relation.ispartofProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
dc.rightsAcesso Restrito
dc.titleFatigue life estimation of welded joints including the effects of crack closure phenomena
dc.typeArtigo de evento
fei.scopus.citations2
fei.scopus.eid2-s2.0-84855795583
fei.scopus.subject70 steel
fei.scopus.subjectCompact tension specimen
fei.scopus.subjectCrack closure behavior
fei.scopus.subjectCrack opening
fei.scopus.subjectCrack-closure phenomena
fei.scopus.subjectElastic-plastic finite element analysis
fei.scopus.subjectExperimental data
fei.scopus.subjectFatigue life estimation
fei.scopus.subjectFatigue propagation life
fei.scopus.subjectFinite Element
fei.scopus.subjectHeterogeneous materials
fei.scopus.subjectMechanical components
fei.scopus.subjectMechanical heterogeneity
fei.scopus.subjectOperating life
fei.scopus.subjectResidual stress fields
fei.scopus.subjectSoft material
fei.scopus.subjectTime spent
fei.scopus.subjectWeld strength
fei.scopus.subjectWeldments
fei.scopus.updated2024-12-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84855795583&origin=inward
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